Pedelecer

Thanks Gubbins,
I don't think the 'strength' of this warning device is in town/heavy traffic and not where I would be using it.
I predominately cycle on reasonably quiet rural roads here in North Yorkshire. I think an audible warning is
essential, you cannot be looking down at the screen checking for onrushing cars. I was sceptical at first but the overwhelming body of opinion is very favourable. This is the respected Shane Miller on Youtube. N:B This is the mk1 version.

Esteemed Pedelecer

You are correct. In town where vehicle speeds are similar to cycle speed it is of no use as it measures speed difference to work, but on really quiet roads the sound can be heard but the noise it makes is far too low and is easily missed. I have both mk1 and 2 and prefer mk2 for the brighter light.

Pedelecer

Oh ! I didn’t realise from your 1st post that you actually owned the device. I thought the audible warning you referred to was not related to the RTL510. So do you use the radar tail light with a Garmin computer ? If so can I ask which one please ?

Esteemed Pedelecer

Your welcome.
I wouldn't advise spending a lot of money on an expensive Garmin device because in my experience the extra functions I paid more for (mapping and route guidance don't work very well). I had also considered the varia vision which is compatible with varia radar and seems like the perfect solution, but for the price and head unit compatibility isn't very good, but a heads up display warning of rearward approaching trafic would be awesome.. not found a retailer yet that has one to try.https://www.sigmasports.com/item/Ga...C5d57HcwnjBUMvY2ulxoCanoQAvD_BwE&gclsrc=aw.ds

Pedelecer

Your welcome.
I wouldn't advise spending a lot of money on an expensive Garmin device because in my experience the extra functions I paid more for (mapping and route guidance don't work very well). I had also considered the varia vision which is compatible with varia radar and seems like the perfect solution, but for the price and head unit compatibility isn't very good, but a heads up display warning of rearward approaching trafic would be awesome.. not found a retailer yet that has one to try.https://www.sigmasports.com/item/Ga...C5d57HcwnjBUMvY2ulxoCanoQAvD_BwE&gclsrc=aw.ds

No, I really do not want to buy a new Garmin device, my Edge 500 does all need. This is why I am trying to
discover if the 'bundled' HUD unit gives audible warning. When you read the literature they all say
" providing visual and audible alerts " but I am old and cynical and definitely read a comment on YouTube
where the Op complained about no aubible warning on the HUD unit. Now he might be wrong of course ?
I have asked Garmin via their Facebook page but no answer and I'm not holding my breadth.

Esteemed Pedelecer

Perhaps thats why I dont hear mine.. I am either out with no traffic at all or on busy roads with constant traffic. I ffind the radar invaluble for navigating right turns and roundabouts on busy roads.
It shows up to 8 dots representing traffic so I wait for a gap in the dots before I look behind for confirmation.. Saves the constant looking back trying to find a gap.. Also have a mirror but the varia radar gives the most acurate reprisentation of the gaps.

Pedelecer

Yes, I do not ride in such 'testing' conditions as you but I am 72 and when I'm knackered it is easy to lose concentration. There are many narrow country lanes with pot holes etc this means constant checking behind before moving out to avoid. Yes, I can usually hear the car that's close but is it one car or are there others.
I have a small mirror which does help but I'm a 'belt 'n' braces' man these days.

Esteemed Pedelecer

Though not as tech as the tail radar for the Garmin, if you want a HUD to see behind then there is the motorcycle option with LCD HUD and front and rear mini cameras. The system needs 12 -24v to operate and is hard wired.
At about 750ma system draw you could simply uses a 4 or 6s lipo for a battery source not charging above 24v or 4v per cell. Recording on a loop so no need to erase footage.